feat: update pyproject-metadata to support latest version of PEP 639 (#259)

* fix: update pyproject-metadata to 0.9.0

Signed-off-by: Frost Ming <me@frostming.com>

* feat: update pyproject-metadata to support latest version of PEP 639

Signed-off-by: Frost Ming <me@frostming.com>

* fix tests

Signed-off-by: Frost Ming <me@frostming.com>

Author: frostming

docs/hooks.md

@@ -137,7 +137,7 @@ pdm-build-mypyc
     version = "0.1.0"
     description = "A pdm build hook to compile Python code with mypyc"
     authors = [{name = "...", email = "..."}]
-    license = {text = "MIT"}
+    license = "MIT"
     readme = "README.md"
 
     [project.entry-points."pdm.build.hook"]
@@ -156,7 +156,6 @@ pdm-build-mypyc
             mypyc_build(context.build_dir)
     ```
 
-
 The plugin must be distributed with an entry point under `pdm.build.hook` group. The entry point value can be any of the following:
 
 - A module containing hook functions

docs/index.md

@@ -40,7 +40,7 @@ authors = [{name = "John Doe", email="me@johndoe.org"}]
 dependencies = ["requests"]
 requires-python = ">=3.8"
 readme = "README.md"
-license = {text = "MIT"}
+license = "MIT"
 ```
 
 Then run the build command to build the project as wheel and sdist:

pyproject.toml

@@ -6,7 +6,7 @@ description = "The build backend used by PDM that supports latest packaging stan
 authors = [
   { name = "Frost Ming", email = "me@frostming.com" }
 ]
-license = {text = "MIT"}
+license = "MIT"
 requires-python = ">=3.8"
 readme = "README.md"
 keywords = ["packaging", "PEP 517", "build"]

scripts/patches/pyproject_metadata.patch

@@ -1,8 +1,16 @@
 diff --git a/src/pdm/backend/_vendor/pyproject_metadata/__init__.py b/src/pdm/backend/_vendor/pyproject_metadata/__init__.py
-index df826f8..7f69f3a 100644
+index 52289dc..7ef9fc9 100644
 --- a/src/pdm/backend/_vendor/pyproject_metadata/__init__.py
 +++ b/src/pdm/backend/_vendor/pyproject_metadata/__init__.py
-@@ -24,11 +24,11 @@ if typing.TYPE_CHECKING:
+@@ -20,18 +20,18 @@ if typing.TYPE_CHECKING:
+     from collections.abc import Generator, Iterable, Mapping
+     from typing import Any
+ 
+-    from packaging.requirements import Requirement
++    from pdm.backend._vendor.packaging.requirements import Requirement
+ 
+     if sys.version_info < (3, 11):
+         from typing_extensions import Self
      else:
          from typing import Self
 
@@ -18,22 +26,46 @@ index df826f8..7f69f3a 100644
 +import pdm.backend._vendor.packaging.version as pkg_version
 
 
- __version__ = '0.8.0'
-@@ -175,11 +175,11 @@ class Readme(typing.NamedTuple):
+ __version__ = '0.9.0b3'
+@@ -351,8 +351,8 @@ class ProjectFetcher(DataFetcher):
+         requirements: list[Requirement] = []
+         for req in requirement_strings:
+             try:
+-                requirements.append(packaging.requirements.Requirement(req))
+-            except packaging.requirements.InvalidRequirement as e:
++                requirements.append(pkg_requirements.Requirement(req))
++            except pkg_requirements.InvalidRequirement as e:
+                 msg = (
+                     'Field "project.dependencies" contains an invalid PEP 508 '
+                     f'requirement string "{req}" ("{e}")'
+@@ -393,9 +393,9 @@ class ProjectFetcher(DataFetcher):
+                     raise ConfigurationError(msg)
+                 try:
+                     requirements_dict[extra].append(
+-                        packaging.requirements.Requirement(req)
++                        pkg_requirements.Requirement(req)
+                     )
+-                except packaging.requirements.InvalidRequirement as e:
++                except pkg_requirements.InvalidRequirement as e:
+                     msg = (
+                         f'Field "project.optional-dependencies.{extra}" contains '
+                         f'an invalid PEP 508 requirement string "{req}" ("{e}")'
+@@ -453,12 +453,12 @@ class Readme(typing.NamedTuple):
  @dataclasses.dataclass
  class StandardMetadata:
      name: str
 -    version: packaging.version.Version | None = None
 +    version: pkg_version.Version | None = None
      description: str | None = None
-     license: License | None = None
+     license: License | str | None = None
+     license_files: list[pathlib.Path] | None = None
      readme: Readme | None = None
 -    requires_python: packaging.specifiers.SpecifierSet | None = None
 +    requires_python: pkg_specifiers.SpecifierSet | None = None
      dependencies: list[Requirement] = dataclasses.field(default_factory=list)
-     optional_dependencies: dict[str, list[Requirement]] = dataclasses.field(default_factory=dict)
-     entrypoints: dict[str, dict[str, str]] = dataclasses.field(default_factory=dict)
-@@ -202,7 +202,7 @@ class StandardMetadata:
+     optional_dependencies: dict[str, list[Requirement]] = dataclasses.field(
+         default_factory=dict
+@@ -547,7 +547,7 @@ class StandardMetadata:
 
      @property
      def canonical_name(self) -> str:
@@ -42,7 +74,7 @@ index df826f8..7f69f3a 100644
 
      @classmethod
      def from_pyproject(
-@@ -235,7 +235,7 @@ class StandardMetadata:
+@@ -590,7 +590,7 @@ class StandardMetadata:
 
          version_string = fetcher.get_str('project.version')
          requires_python_string = fetcher.get_str('project.requires-python')
@@ -51,16 +83,16 @@ index df826f8..7f69f3a 100644
 
          if version is None and 'version' not in dynamic:
              msg = 'Field "project.version" missing and "version" not specified in "project.dynamic"'
-@@ -256,7 +256,7 @@ class StandardMetadata:
-             description,
-             cls._get_license(fetcher, project_dir),
-             cls._get_readme(fetcher, project_dir),
--            packaging.specifiers.SpecifierSet(requires_python_string) if requires_python_string else None,
-+            pkg_specifiers.SpecifierSet(requires_python_string) if requires_python_string else None,
-             cls._get_dependencies(fetcher),
-             cls._get_optional_dependencies(fetcher),
-             cls._get_entrypoints(fetcher),
-@@ -358,15 +358,15 @@ class StandardMetadata:
+@@ -608,7 +608,7 @@ class StandardMetadata:
+             fetcher.get_license(project_dir),
+             fetcher.get_license_files(project_dir),
+             fetcher.get_readme(project_dir),
+-            packaging.specifiers.SpecifierSet(requires_python_string)
++            pkg_specifiers.SpecifierSet(requires_python_string)
+             if requires_python_string
+             else None,
+             fetcher.get_dependencies(),
+@@ -720,15 +720,15 @@ class StandardMetadata:
          requirement = copy.copy(requirement)
          if requirement.marker:
              if 'or' in requirement.marker._markers:
@@ -78,26 +110,4 @@ index df826f8..7f69f3a 100644
 +            requirement.marker = pkg_markers.Marker(f'extra == "{extra}"')
          return requirement
 
-     @staticmethod
-@@ -462,8 +462,8 @@ class StandardMetadata:
-         requirements: list[Requirement] = []
-         for req in requirement_strings:
-             try:
--                requirements.append(packaging.requirements.Requirement(req))
--            except packaging.requirements.InvalidRequirement as e:
-+                requirements.append(pkg_requirements.Requirement(req))
-+            except pkg_requirements.InvalidRequirement as e:
-                 msg = (
-                     'Field "project.dependencies" contains an invalid PEP 508 '
-                     f'requirement string "{req}" ("{e}")'
-@@ -502,8 +502,8 @@ class StandardMetadata:
-                     )
-                     raise ConfigurationError(msg)
-                 try:
--                    requirements_dict[extra].append(packaging.requirements.Requirement(req))
--                except packaging.requirements.InvalidRequirement as e:
-+                    requirements_dict[extra].append(pkg_requirements.Requirement(req))
-+                except pkg_requirements.InvalidRequirement as e:
-                     msg = (
-                         f'Field "project.optional-dependencies.{extra}" contains '
-                         f'an invalid PEP 508 requirement string "{req}" ("{e}")'
+ 

src/pdm/backend/_vendor/packaging/__init__.py

@@ -6,7 +6,7 @@
 __summary__ = "Core utilities for Python packages"
 __uri__ = "https://github.com/pypa/packaging"
 
-__version__ = "24.0"
+__version__ = "24.1"
 
 __author__ = "Donald Stufft and individual contributors"
 __email__ = "donald@stufft.io"

src/pdm/backend/_vendor/packaging/_elffile.py

@@ -8,10 +8,12 @@
 ELF header: https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html
 """
 
+from __future__ import annotations
+
 import enum
 import os
 import struct
-from typing import IO, Optional, Tuple
+from typing import IO
 
 
 class ELFInvalid(ValueError):
@@ -87,11 +89,11 @@ def __init__(self, f: IO[bytes]) -> None:
         except struct.error as e:
             raise ELFInvalid("unable to parse machine and section information") from e
 
-    def _read(self, fmt: str) -> Tuple[int, ...]:
+    def _read(self, fmt: str) -> tuple[int, ...]:
         return struct.unpack(fmt, self._f.read(struct.calcsize(fmt)))
 
     @property
-    def interpreter(self) -> Optional[str]:
+    def interpreter(self) -> str | None:
         """
         The path recorded in the ``PT_INTERP`` section header.
         """

src/pdm/backend/_vendor/packaging/_manylinux.py

@@ -1,11 +1,13 @@
+from __future__ import annotations
+
 import collections
 import contextlib
 import functools
 import os
 import re
 import sys
 import warnings
-from typing import Dict, Generator, Iterator, NamedTuple, Optional, Sequence, Tuple
+from typing import Generator, Iterator, NamedTuple, Sequence
 
 from ._elffile import EIClass, EIData, ELFFile, EMachine
 
@@ -17,7 +19,7 @@
 # `os.PathLike` not a generic type until Python 3.9, so sticking with `str`
 # as the type for `path` until then.
 @contextlib.contextmanager
-def _parse_elf(path: str) -> Generator[Optional[ELFFile], None, None]:
+def _parse_elf(path: str) -> Generator[ELFFile | None, None, None]:
     try:
         with open(path, "rb") as f:
             yield ELFFile(f)
@@ -72,15 +74,15 @@ def _have_compatible_abi(executable: str, archs: Sequence[str]) -> bool:
 # For now, guess what the highest minor version might be, assume it will
 # be 50 for testing. Once this actually happens, update the dictionary
 # with the actual value.
-_LAST_GLIBC_MINOR: Dict[int, int] = collections.defaultdict(lambda: 50)
+_LAST_GLIBC_MINOR: dict[int, int] = collections.defaultdict(lambda: 50)
 
 
 class _GLibCVersion(NamedTuple):
     major: int
     minor: int
 
 
-def _glibc_version_string_confstr() -> Optional[str]:
+def _glibc_version_string_confstr() -> str | None:
     """
     Primary implementation of glibc_version_string using os.confstr.
     """
@@ -90,7 +92,7 @@ def _glibc_version_string_confstr() -> Optional[str]:
     # https://github.com/python/cpython/blob/fcf1d003bf4f0100c/Lib/platform.py#L175-L183
     try:
         # Should be a string like "glibc 2.17".
-        version_string: Optional[str] = os.confstr("CS_GNU_LIBC_VERSION")
+        version_string: str | None = os.confstr("CS_GNU_LIBC_VERSION")
         assert version_string is not None
         _, version = version_string.rsplit()
     except (AssertionError, AttributeError, OSError, ValueError):
@@ -99,7 +101,7 @@ def _glibc_version_string_confstr() -> Optional[str]:
     return version
 
 
-def _glibc_version_string_ctypes() -> Optional[str]:
+def _glibc_version_string_ctypes() -> str | None:
     """
     Fallback implementation of glibc_version_string using ctypes.
     """
@@ -143,12 +145,12 @@ def _glibc_version_string_ctypes() -> Optional[str]:
     return version_str
 
 
-def _glibc_version_string() -> Optional[str]:
+def _glibc_version_string() -> str | None:
     """Returns glibc version string, or None if not using glibc."""
     return _glibc_version_string_confstr() or _glibc_version_string_ctypes()
 
 
-def _parse_glibc_version(version_str: str) -> Tuple[int, int]:
+def _parse_glibc_version(version_str: str) -> tuple[int, int]:
     """Parse glibc version.
 
     We use a regexp instead of str.split because we want to discard any
@@ -167,8 +169,8 @@ def _parse_glibc_version(version_str: str) -> Tuple[int, int]:
     return int(m.group("major")), int(m.group("minor"))
 
 
-@functools.lru_cache()
-def _get_glibc_version() -> Tuple[int, int]:
+@functools.lru_cache
+def _get_glibc_version() -> tuple[int, int]:
     version_str = _glibc_version_string()
     if version_str is None:
         return (-1, -1)

src/pdm/backend/_vendor/packaging/_musllinux.py

@@ -4,11 +4,13 @@
 linked against musl, and what musl version is used.
 """
 
+from __future__ import annotations
+
 import functools
 import re
 import subprocess
 import sys
-from typing import Iterator, NamedTuple, Optional, Sequence
+from typing import Iterator, NamedTuple, Sequence
 
 from ._elffile import ELFFile
 
@@ -18,7 +20,7 @@ class _MuslVersion(NamedTuple):
     minor: int
 
 
-def _parse_musl_version(output: str) -> Optional[_MuslVersion]:
+def _parse_musl_version(output: str) -> _MuslVersion | None:
     lines = [n for n in (n.strip() for n in output.splitlines()) if n]
     if len(lines) < 2 or lines[0][:4] != "musl":
         return None
@@ -28,8 +30,8 @@ def _parse_musl_version(output: str) -> Optional[_MuslVersion]:
     return _MuslVersion(major=int(m.group(1)), minor=int(m.group(2)))
 
 
-@functools.lru_cache()
-def _get_musl_version(executable: str) -> Optional[_MuslVersion]:
+@functools.lru_cache
+def _get_musl_version(executable: str) -> _MuslVersion | None:
     """Detect currently-running musl runtime version.
 
     This is done by checking the specified executable's dynamic linking